California declares H5N1 emergency as farms resist mitigation.

Reuters – US suffers first severe human case of bird flu; California declares emergency – By Leah Douglas and Tom Polansek – December 18, 2024 5:55 PM EST The U.S. reported its first severe human case of bird flu on Wednesday in a Louisiana resident who is hospitalized in critical condition after suspected contact with an infected backyard flock. California, the most populous state, declared an emergency over the H5N1 virus as it spread more widely in dairy herds and after it has infected dozens of farm workers this year. Federal and state officials have failed to control the nation’s outbreak, which infected dairy cattle for the first time in 2024, as some farmers resist testing and containment measures.